A toothed safe braking apparatus for use in robotic joint, comprising an electromagnetic telescoping apparatus (6) and a friction engagement component (10). The friction engagement component (10) is mounted on a shaft (C) of the robotic joint and comprises a brake lock ring gear (1) provided with a first center fitting hole (12), the brake lock ring gear (1) being provided with teeth (11) arranged on the outer circumferential surface thereof, a pretension ring (2) provided with a second center fitting hole (13), and a brake hub (4) provided with a first end surface (14), a second end surface (15), and an outer circumferential surface (16). On a locked position, a working bit (17) of the electromagnetic telescoping appamtus (6) can be engaged with the teeth (11) on the brake lock ring gear (1) of the friction engagement component (10); and, on an unlocked position, the working bit (17) of the electromagnetic telescoping apparatus (6) can be disengaged from the teeth (11) on the brake lock ring gear (1) of the friction engagement component (10). The brake lock ring gear (1) and the pretension ring (2) are arranged in parallel via the first fitting hole (12) and the second fitting hole (13) to be friction engaged on the outer circumferential surface (16) of the brake hub (4).

Disclosed herein an electric parking brake (EPB) that is controlled by an electrical signal and generates a parking braking force includes a caliper housing including a cylinder and a piston slidably provided in the cylinder; and an actuator installed in the cylinder to press and release the piston; wherein the actuator comprises a linear motor installed in the cylinder and having a moving member that moves linearly according to an electrical signal, and a pressing portion that is press-fitted to the moving member to move together with the moving member and presses selectively the piston.

A vehicle includes a control system, a sensing system that senses an environment of the vehicle, and a propulsion system, a braking system, and a steering system that are operated by the control system to navigate the vehicle according to the sensing system and without direct human control. The propulsion system and the braking system are operated by the control system to cooperatively decelerate the vehicle. The braking system includes an inboard friction brake that is associated with one or more wheels of the vehicle and does not form unsprung mass of the vehicle.

An electric drum brake for a rotatable element of a passenger motor vehicle. The drum brake has a brake drum and a brake surface which is connected rotationally conjointly to the brake drum, and also an electromagnet arrangement, wherein multiple brake shoes can be pushed against the brake drum by the electromagnet arrangement, and wherein the drum brake has a preloading arrangement which preloads the electromagnet arrangement into a position spaced apart from the brake surface.

An electric brake apparatus of a vehicle includes a caliper body formed with a cylinder section and a boost force support section disposed to face the cylinder section with a brake disc interposed therebetween; an internal motor installed in the cylinder section, and generating a rotational displacement by application of current; a push rod disposed coaxially with the internal motor; a ball-in-ramp disposed between the internal motor and the push rod, converting the rotation displacement of the internal motor into a linear displacement, and transferring the linear displacement to the push rod; a piston disposed in an open part of the cylinder section, pushed and moved by the push rod; a first friction pad coupled to the piston, and disposed on one side of the brake disc; and a second friction pad coupled to the boost force support section, and disposed on the other side of the brake disc.

An eddy-current rail brake device includes a row of magnets, a supporting member, a case, and a lifting device. The row of magnets includes a plurality of permanent magnets that are arranged in a traveling direction of a railroad car. To the supporting member, the row of magnets is mounted. The supporting member has magnetism. The case houses the row of magnets and the supporting member and includes a bottom portion that faces the row of magnets and is non-magnetic. The lifting device raises and lowers the supporting member inside the case while the row of magnets is kept facing the bottom portion. The eddy-current rail brake device can prevent or reduce adhesion of a foreign object and can be reduced in size in a right-left direction.

An integrated electromagnet comprises a magnetic yoke and magnetic poles in two rows. An axis of magnetic core in the magnetic pole is perpendicular to the magnetic yoke. The magnetic poles comprise first and second magnetic poles that are arranged alternatively in a row. The first magnetic pole in any row is adjacent to the second magnetic pole in the other row. The first magnetic poles in a row are connected to a one-way output controller and the second magnetic poles in a row are connected to a bidirectional output controller. In a guiding state, the magnetic poles in a row have a same polarity, and a polarity of the magnetic poles in one row is opposite to that in the other row; current output by the bidirectional output controller in a braking state has direction opposite to current output by the bidirectional output controller in the guiding state.

The disclosure provides a magnetic yoke iron core and a brake including a magnetic yoke iron core, a first movable plate, a plurality of friction disks, at least one second movable plate, a coil, an armature and an elastic part; the first movable plate is located in a first mounting space and close to a first shaft end; a plurality of friction disks are sequentially arranged in the first mounting space along an axial direction of the magnetic yoke iron core and located at a side of the first movable plate close to a second shaft end; the coil is arranged in a second mounting space; the armature is connected with the first movable plate through a connector; the second movable plate is connected with the connector; and the elastic part having a pre-tightening force which enables the armature to be far away from the magnetic yoke iron core.

An electromagnetic brake device includes an armature rotatably supported about a rotational axis; a yoke including a groove, an inner cylinder portion, and an outer cylinder portion; and a coil arranged in the groove and configured to generate a magnetic force when energized and thereby attract the armature to the yoke. A first opposing surface of the armature facing the yoke includes a sliding surface configured to slide on the outer cylinder portion of the yoke, and a recessed portion disposed inward of the sliding surface in a radial direction and recessed in a direction away from the yoke. An inner perimeter area of a second opposing surface of the outer cylinder portion of the yoke and a third opposing surface of the inner cylinder portion of the yoke face the recessed portion of the armature and do not contact the first opposing surface of the armature.

A cycle braking system is provided where the system comprises a brake sphere engaged with a shaft adjacent to a wheel of a cycle and a brake caliper, where the brake caliper is mounted to a cycle's chassis and aligned around the brake sphere rotor. In one embodiment, the cycle braking system further comprises brake pad(s) with an inner side and a contact side, a brake housing having the brake pad(s) positioned between the caliper and the contact side facing the brake sphere; and the brake caliper connected to a cycle's hydraulic lines.